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This application note explains why it is essential to analyze not only the circuit ofinterest, but the environment around the circuit when testing services.

This application note highlights the differences between the differential phase-shift method and the phase-shift method.

This application note demonstrates how linearity at the far end of an OTDR trace is very important to guarantee proper link loss, event loss and attenuation readings.

This article demonstrate how the IQS-500 Intelligent Test System can be integrated into your own test setup to meet the requirements of automation.

This application note provides an overview of next-generation SONET/SDH technologies designed for service providers to meet this demand shift.

This application note is intended to provide guidance for proper testing methods for SONET-based networks as recommended by EXFO.

This application note discusses the importance of QoS and offers QoS testing methods when activating data services.

This application note outlines the SDT measurement approach of the FTB-8140 Transport Blazer that should be performed during the installation and commissioning of network elements and their new circui...

This application note explains how effective and thorough testing is an absolute necessity to accomplish a successful IPTV service deployment.

This article provides key information on portable optical spectrum analyzers (OSAs) and how they can measure the most important parameters in a DWDM system.